*bump*

Actually, if you look at an ASCII chart, you'll find that 0x20h is the hexadecimal representation of the space character. Take note of the "unprintable" numbers. "00 20" kinds looks familiar AND it's rather strategically placed.

Why is this happening? I have no clue, but it does appear to be the hexadecimal representation of the character in an ASCII table.

I had a problem on multiple computers using firefox when printing. The version of Firefox was the latest at the time (about a week ago) and the Printer is an HP Laserjet 8100 series. I fixed it by reinstalling the printer driver.

-I deleted the old printer driver from the Printers & Faxes window.
-I installed a new printer driver to LPT1 (even though we are using a network printer).
-It asked if I wanted to keep the current driver or reinstall, and I chose to reinstall.
-Once it was installed, I connected to the network printer again (is hosted on a print server) and now it is working fine.

I had one that did not work fine, but I discovered that the printer driver being given to it by the server was slightly different than the one I reinstalled. So I just changed it to the one I reinstalled.

Rather than downgrading everyone to FF2, if you can wait and stay with FF3 till the end of this week (/when you can next upgrade) - we worked around the issue in 5.0.9 by using monospace instead of courier Bug 29379 - printing from firefox 3 ( ff3 ) issues